Function unfold

repos/effect/packages/effect/src/Stream.ts:1638–1649

(
  s: S,
  f: (s: S) => Effect.Effect<readonly [A, S] | undefined, E, R>
)

 * await Effect.runPromise(program)
 * ```
 *
 * @category constructors
 * @since 2.0.0
 */
export const unwrap = <A, E2, R2, E, R>(
  effect: Effect.Effect<Stream<A, E2, R2>, E, R>
): Stream<A, E | E2, R2 | Exclude<R, Scope.Scope>> => fromChannel(Channel.unwrap(Effect.map(effect, toChannel)))

/**
 * Runs a stream that requires `Scope` in a managed scope, ensuring its
 * finalizers are run when the stream completes.
 *
 * **Example** (Scoping a stream)
 *
 * ```ts import.meta.vitest